GEOG 2051 Chapter : 3 17 16
Document Summary
Thursday, march 17, 2016 depositional features dunes: fixed- heavy cover of vegetation, more stable for longer periods of time, mobile- sand exposed to wind, un vegetated, wind can transport dune migration. Portions carried away and deposited on other portion, shape preserved. Erodes as wind moves along stoss slope, wine detaches from slope at slip face, doesn"t affect until further along, builds slip face as material settles there. Dry river channels (arroyo/wash/wadi) can flood, very violent. Alluvial fan: cone shape deposit of sediment at mouth of mountain at canyon. Monument valley- originally all same height, rain leaves behind resistant rock.
